package com.ly.lypicturebackend.manager;

import cn.hutool.core.io.FileUtil;
import com.ly.lypicturebackend.config.CosClientConfig;
import com.qcloud.cos.COSClient;
import com.qcloud.cos.model.COSObject;
import com.qcloud.cos.model.GetObjectRequest;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;
import com.qcloud.cos.model.ciModel.persistence.PicOperations;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * @author luyi
 * @create 2024-12-31-14:42
 */
@Component
public class CosManager {
    @Resource
    private CosClientConfig cosClientConfig;
    @Resource
    private COSClient cosClient;

    // 将本地文件上传到 COS
    public PutObjectResult putObject(String key, File file){
        PutObjectRequest putObjectRequest = new PutObjectRequest(cosClientConfig.getBucket(), key, file);
        return cosClient.putObject(putObjectRequest);
    }

    //下载文件
    public COSObject getObject(String key){
        GetObjectRequest getObjectRequest = new GetObjectRequest(cosClientConfig.getBucket(), key);
        return cosClient.getObject(getObjectRequest);
    }

    // 将本地文件上传到 COS并解析图片
    public PutObjectResult putPictureObj(String key, File file) {
        PutObjectRequest putObjectRequest = new PutObjectRequest(cosClientConfig.getBucket(), key,
                file);
        // 对图片进行处理（获取基本信息也被视作为一种处理）
        PicOperations picOperations = new PicOperations();
        // 1 表示返回原图信息
        picOperations.setIsPicInfo(1);
        List<PicOperations.Rule> rules = new ArrayList<>();
        // 图片压缩（转成 webp 格式）
        String webpKey = FileUtil.mainName(key) + ".webp";
        PicOperations.Rule compressRule = new PicOperations.Rule();
        compressRule.setRule("imageMogr2/format/webp");
        compressRule.setBucket(cosClientConfig.getBucket());
        compressRule.setFileId(webpKey);
        rules.add(compressRule);
        // 缩略图处理
        if(file.length()>2*1024){
            PicOperations.Rule thumbnailRule = new PicOperations.Rule();
            thumbnailRule.setBucket(cosClientConfig.getBucket());
            String thumbnailKey = FileUtil.mainName(key) + "_thumbnail." + FileUtil.getSuffix(key);
            thumbnailRule.setFileId(thumbnailKey);
            // 缩放规则 /thumbnail/<Width>x<Height>>（如果大于原图宽高，则不处理）
            thumbnailRule.setRule(String.format("imageMogr2/thumbnail/%sx%s>", 128, 128));
            rules.add(thumbnailRule);
        }
        // 构造处理参数
        picOperations.setRules(rules);
        putObjectRequest.setPicOperations(picOperations);
        return cosClient.putObject(putObjectRequest);
    }

    //删除对象
    public void deleteObject(String key){
        cosClient.deleteObject(cosClientConfig.getBucket(), key);
    }
}
